<template>
    <Tooltip placement="top" v-bind="getBindProps">
        <template #title>
            <span>{{ t('component.table.settingColumn') }}</span>
        </template>
        <Popover
                placement="bottomLeft"
                trigger="click"
                @visibleChange="handleVisibleChange"
                :overlayClassName="`${prefixCls}__cloumn-list`"
                :getPopupContainer="getPopupContainer"
        >
            <template #title>
                <div :class="`${prefixCls}__popover-title`">
                    <Checkbox
                            :indeterminate="indeterminate"
                            v-model:checked="checkAll"
                            @change="onCheckAllChange"
                    >
                        {{ t('component.table.settingColumnShow') }}
                    </Checkbox>

                    <Checkbox v-model:checked="checkIndex" @change="handleIndexCheckChange">
                        {{ t('component.table.settingIndexColumnShow') }}
                    </Checkbox>

<!--                    <Checkbox-->
<!--                            v-model:checked="checkSelect"-->
<!--                            @change="handleSelectCheckChange"-->
<!--                            :disabled="!defaultRowSelection"-->
<!--                    >-->
<!--                        {{ t('component.table.settingSelectColumnShow') }}-->
<!--                    </Checkbox>-->

                    <a-button size="small" type="link" @click="reset">
                        {{ t('common.resetText') }}
                    </a-button>
                </div>
            </template>

            <template #content>
                <ScrollContainer>
                    <CheckboxGroup v-model:value="checkedList" @change="onChange" ref="columnListRef">
                        <template v-for="item in plainOptions" :key="item.value">
                            <div :class="`${prefixCls}__check-item`" v-if="!('ifShow' in item && !item.ifShow)">
                                <DragOutlined class="table-coulmn-drag-icon" />
                                <Checkbox :value="item.value">
                                    {{ item.label }}
                                </Checkbox>

                                <Tooltip
                                        placement="bottomLeft"
                                        :mouseLeaveDelay="0.4"
                                        :getPopupContainer="getPopupContainer"
                                >
                                    <template #title>
                                        {{ t('component.table.settingFixedLeft') }}
                                    </template>
                                    <Icon
                                            icon="line-md:arrow-align-left"
                                            :class="[
                      `${prefixCls}__fixed-left`,
                      {
                        active: item.fixed === 'left',
                        disabled: !checkedList.includes(item.value),
                      },
                    ]"
                                            @click="handleColumnFixed(item, 'left')"
                                    />
                                </Tooltip>
                                <Divider type="vertical" />
                                <Tooltip
                                        placement="bottomLeft"
                                        :mouseLeaveDelay="0.4"
                                        :getPopupContainer="getPopupContainer"
                                >
                                    <template #title>
                                        {{ t('component.table.settingFixedRight') }}
                                    </template>
                                    <Icon
                                            icon="line-md:arrow-align-left"
                                            :class="[
                      `${prefixCls}__fixed-right`,
                      {
                        active: item.fixed === 'right',
                        disabled: !checkedList.includes(item.value),
                      },
                    ]"
                                            @click="handleColumnFixed(item, 'right')"
                                    />
                                </Tooltip>
                            </div>
                        </template>
                    </CheckboxGroup>
                </ScrollContainer>
            </template>
            <SettingOutlined />
        </Popover>
    </Tooltip>
</template>
<script lang="ts">
    import type { BasicColumn, ColumnChangeParam } from '../../types/table';
    import {
        defineComponent,
        ref,
        reactive,
        toRefs,
        watchEffect,
        nextTick,
        unref,
        computed,
    } from 'vue';
    import { Tooltip, Popover, Checkbox, Divider } from 'ant-design-vue';
    import { SettingOutlined, DragOutlined } from '@ant-design/icons-vue';
    import { Icon } from '/@/components/Icon';
    import { ScrollContainer } from '/@/components/Container';
    import { useI18n } from '/@/hooks/web/useI18n';
    import { useTableContext } from '../../hooks/useTableContext';
    import { useDesign } from '/@/hooks/web/useDesign';
    import { useSortable } from '/@/hooks/web/useSortable';
    import { isFunction, isNullAndUnDef } from '/@/utils/is';
    import { getPopupContainer as getParentContainer } from '/@/utils';
    import { omit } from 'lodash-es';

    interface State {
        checkAll: boolean;
        checkedList: string[];
        defaultCheckList: string[];
    }

    interface Options {
        label: string;
        value: string;
        fixed?: boolean | 'left' | 'right';
    }

    export default defineComponent({
        name: 'ColumnSetting',
        props: {
          isMobile: Boolean,
        },
        components: {
            SettingOutlined,
            Popover,
            Tooltip,
            Checkbox,
            CheckboxGroup: Checkbox.Group,
            DragOutlined,
            ScrollContainer,
            Divider,
            Icon,
        },
        emits: ['columns-change'],

        setup(props, { emit, attrs }) {
            const { t } = useI18n();
            const table = useTableContext();

            const defaultRowSelection = omit(table.getRowSelection(), 'selectedRowKeys');
            let inited = false;

            const cachePlainOptions = ref<Options[]>([]);
            const plainOptions = ref<Options[]>([]);

            const plainSortOptions = ref<Options[]>([]);

            const columnListRef = ref<ComponentRef>(null);

            const state = reactive<State>({
                checkAll: true,
                checkedList: [],
                defaultCheckList: [],
            });

            const checkIndex = ref(false);
            const checkSelect = ref(false);

            const { prefixCls } = useDesign('basic-column-setting');

            const getValues = computed(() => {
                return unref(table?.getBindValues) || {};
            });

            const getBindProps = computed(() => {
              let obj = {}
              if (props.isMobile){
                obj['visible'] = false
              }
              return obj
            })

            watchEffect(() => {
                const columns = table.getColumns();
                if (columns.length) {
                    init();
                }
            });

            watchEffect(() => {
                const values = unref(getValues);
                checkIndex.value = !!values.showIndexColumn;
                checkSelect.value = !!values.rowSelection;
            });

            function getColumns() {
                const ret: Options[] = [];
                table.getColumns({ ignoreIndex: true, ignoreAction: true }).forEach((item) => {
                    ret.push({
                        label: (item.title as string) || (item.customTitle as string),
                        value: (item.dataIndex || item.title) as string,
                        ...item,
                    });
                });
                return ret;
            }

            function init() {
                const columns = getColumns();

                const checkList = table
                    .getColumns({ ignoreAction: true })
                    .map((item) => {
                        if (item.defaultHidden) {
                            return '';
                        }
                        return item.dataIndex || item.title;
                    })
                    .filter(Boolean) as string[];

                if (!plainOptions.value.length) {
                    plainOptions.value = columns;
                    plainSortOptions.value = columns;
                    cachePlainOptions.value = columns;
                    state.defaultCheckList = checkList;
                } else {
                    // const fixedColumns = columns.filter((item) =>
                    //   Reflect.has(item, 'fixed')
                    // ) as BasicColumn[];

                    unref(plainOptions).forEach((item: BasicColumn) => {
                        const findItem = columns.find((col: BasicColumn) => col.dataIndex === item.dataIndex);
                        if (findItem) {
                            item.fixed = findItem.fixed;
                        }
                    });
                }
                state.checkedList = checkList;
            }

            // checkAll change
            function onCheckAllChange(e: ChangeEvent) {
                const checkList = plainOptions.value.map((item) => item.value);
                if (e.target.checked) {
                    state.checkedList = checkList;
                    setColumns(checkList);
                } else {
                    state.checkedList = [];
                    setColumns([]);
                }
            }

            const indeterminate = computed(() => {
                const len = plainOptions.value.length;
                let checkdedLen = state.checkedList.length;
                unref(checkIndex) && checkdedLen--;
                return checkdedLen > 0 && checkdedLen < len;
            });

            // Trigger when check/uncheck a column
            function onChange(checkedList: string[]) {
                const len = plainOptions.value.length;
                state.checkAll = checkedList.length === len;

                const sortList = unref(plainSortOptions).map((item) => item.value);
                checkedList.sort((prev, next) => {
                    return sortList.indexOf(prev) - sortList.indexOf(next);
                });
                setColumns(checkedList);
            }

            // reset columns
            function reset() {
                state.checkedList = [...state.defaultCheckList];
                state.checkAll = true;
                plainOptions.value = unref(cachePlainOptions);
                plainSortOptions.value = unref(cachePlainOptions);
                setColumns(table.getCacheColumns());
            }

            // Open the pop-up window for drag and drop initialization
            function handleVisibleChange() {
                if (inited) return;
                nextTick(() => {
                    const columnListEl = unref(columnListRef);
                    if (!columnListEl) return;
                    const el = columnListEl.$el as any;
                    if (!el) return;
                    // Drag and drop sort
                    const { initSortable } = useSortable(el, {
                        handle: '.table-coulmn-drag-icon ',
                        onEnd: (evt) => {
                            const { oldIndex, newIndex } = evt;
                            if (isNullAndUnDef(oldIndex) || isNullAndUnDef(newIndex) || oldIndex === newIndex) {
                                return;
                            }
                            // Sort column
                            const columns = getColumns();

                            if (oldIndex > newIndex) {
                                columns.splice(newIndex, 0, columns[oldIndex]);
                                columns.splice(oldIndex + 1, 1);
                            } else {
                                columns.splice(newIndex + 1, 0, columns[oldIndex]);
                                columns.splice(oldIndex, 1);
                            }

                            plainSortOptions.value = columns;
                            plainOptions.value = columns;
                            setColumns(columns);
                        },
                    });
                    initSortable();
                    inited = true;
                });
            }

            // Control whether the serial number column is displayed
            function handleIndexCheckChange(e: ChangeEvent) {
                table.setProps({
                    showIndexColumn: e.target.checked,
                });
            }

            // Control whether the check box is displayed
            function handleSelectCheckChange(e: ChangeEvent) {
                table.setProps({
                    rowSelection: e.target.checked ? defaultRowSelection : undefined,
                });
            }

            function handleColumnFixed(item: BasicColumn, fixed?: 'left' | 'right') {
                if (!state.checkedList.includes(item.dataIndex as string)) return;

                const columns = getColumns() as BasicColumn[];
                const isFixed = item.fixed === fixed ? false : fixed;
                const index = columns.findIndex((col) => col.dataIndex === item.dataIndex);
                if (index !== -1) {
                    columns[index].fixed = isFixed;
                }
                item.fixed = isFixed;

                if (isFixed && !item.width) {
                    item.width = 100;
                }
                table.setCacheColumnsByField?.(item.dataIndex, { fixed: isFixed });
                setColumns(columns);
            }

            function setColumns(columns: BasicColumn[] | string[]) {
                table.setColumns(columns);
                const data: ColumnChangeParam[] = unref(plainOptions).map((col) => {
                    const visible =
                        columns.findIndex(
                            (c: BasicColumn | string) =>
                                c === col.value || (typeof c !== 'string' && c.dataIndex === col.value)
                        ) !== -1;
                    return { dataIndex: col.value, fixed: col.fixed, visible };
                });

                emit('columns-change', data);
            }

            function getPopupContainer() {
                return isFunction(attrs.getPopupContainer)
                    ? attrs.getPopupContainer()
                    : getParentContainer();
            }

            return {
                getBindProps,
                t,
                ...toRefs(state),
                indeterminate,
                onCheckAllChange,
                onChange,
                plainOptions,
                reset,
                prefixCls,
                columnListRef,
                handleVisibleChange,
                checkIndex,
                checkSelect,
                handleIndexCheckChange,
                handleSelectCheckChange,
                defaultRowSelection,
                handleColumnFixed,
                getPopupContainer,
            };
        },
    });
</script>
<style lang="less">
    @prefix-cls: ~'@{namespace}-basic-column-setting';

    .table-coulmn-drag-icon {
        margin: 0 5px;
        cursor: move;
    }

    .@{prefix-cls} {
        &__popover-title {
            position: relative;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        &__check-item {
            display: flex;
            align-items: center;
            min-width: 100%;
            padding: 4px 16px 8px 0;

            .ant-checkbox-wrapper {
                width: 100%;

                &:hover {
                    color: @primary-color;
                }
            }
        }

        &__fixed-left,
        &__fixed-right {
            color: rgba(0, 0, 0, 0.45);
            cursor: pointer;

            &.active,
            &:hover {
                color: @primary-color;
            }

            &.disabled {
                color: @disabled-color;
                cursor: not-allowed;
            }
        }

        &__fixed-right {
            transform: rotate(180deg);
        }

        &__cloumn-list {
            svg {
                width: 1em !important;
                height: 1em !important;
            }

            .ant-popover-inner-content {
                // max-height: 360px;
                padding-right: 0;
                padding-left: 0;
                // overflow: auto;
            }

            .ant-checkbox-group {
                width: 100%;
                min-width: 260px;
                // flex-wrap: wrap;
            }

            .scrollbar {
                height: 220px;
            }
        }
    }
</style>
